Move --table-* and --backdrop-* base definitions from component selectors
in template.css into :root[data-bs-theme] blocks in light/dark theme files.
Dark table uses white-rgb-based striped/active overlays for proper contrast
on dark surfaces. Deduplicate the double --table-active-* declarations that
existed in template.css. Backdrop values are identical in both themes.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Jonathan Miller
00850c3b61